Derek is one angry werewolf. This is a photo from the Teen Wolf episode "Currents."
Sometimes it's safer not to come out of the closet on Teen Wolf. "Currents" is the seventh episode of the show's third season.

Teen Wolf Season 3 Episode 7 Quotes

Ethan: I'm not going to hurt him.
Scott: Why should I believe you?
Ethan: Because we knew one of them would be important to you, and now we know it's Lydia.

I honestly thought I would never have to burden you like this, but you're my only hope. I'm going to be taken. I need you to find me.

Dr. Deaton